Which of the following elements would be expected to have chemical and physical properties most similar to Iodine (I)?
A) Fluorine (F)
B) Aluminum (Al)
C) Magnesium (Mg)
D) Rubidium (Rb)
E) Krypton (Kr)

Question

Quizplus · Accepted Answer

Fluorine (F) is the correct answer because it is in the same group as iodine (group 17, the halogens) in the periodic table. Elements in the same group have similar chemical and physical properties due to having the same number of valence electrons.

Which of the Following Elements Would Be Expected to Have